---
cve: "CVE-2026-40073"
severity: "HIGH"
cvss: 8.2
epss: "54%"
vendor: "sveltejs"
kev: false
exploited: false
published: "2026-04-10 17:17:12"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-02T15:33:58+02:00"
---

# CVE-2026-40073

> 8.2 HIGH · 🧪 PoC

## Beschreibung

SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Prior to 2.57.1, under certain circumstances, requests could bypass the BODY_SIZE_LIMIT on SvelteKit applications running with adapter-node. This bypass does not affect body size limits at other layers of the application stack, so limits enforced in the WAF, gateway, or at the platform level are unaffected. This vulnerability is fixed in 2.57.1.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- 75147d464a1b52ec05cd9a792a9d2430445621ac (Commit)
- 3202ed6c98f9e8d86bf0c4c7ad0f2e273e5e3b95 (Commit)

## Referenzen

- <https://github.com/sveltejs/kit/security/advisories/GHSA-2crg-3p73-43xp>
- <https://github.com/sveltejs/kit/commit/3202ed6c98f9e8d86bf0c4c7ad0f2e273e5e3b95>
- <https://github.com/sveltejs/kit/releases/tag/@sveltejs/kit@2.57.1>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-40073) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_